
Atwood Hydraulic Brake Actuator Parts List and Schematic
Atwood's Unique Design for Superior Braking
- Unique design creates more pressure on the brakes than in-line actuator systems.
- Parts interchangeability between 6K and 8K actuators.
- Lock-out feature allows use with standard hydraulic brakes for backing up. No need for specific free-backing brakes.
- Disc brake actuators available specifically for use with disc brake systems. Supplies, even more, fluid pressure to brakes than standard hydraulic.
- A breakaway device will set trailer brakes automatically should separation from tow ball occur.

Ordering Replacement Atwood Parts
Replacement Parts are no longer available, but we recommend using the UFP A-60s or A-75s. Some modifications may be needed. Possibly drilling new holes.
- Atwood Hydraulic Surge Brake Actuators for both DIsc and Drum Brake Applications.
- Atwood 6,000 lb. Capacity Brake Actuators Include Model numbers: 82543, 83153, 84132, 84133, 88730, 88740
- Atwood 8,000 lb. Capacity Brake Actuators Include Model numbers:
- 83000, 83005, 83010, 83060, 8036
John Sutton
Attwood brake coupler 6000 lb. 2" ball on a E-Z- Loader trailer (1999 – 2000)
Is this coupler available complete?
The only p/n on the coupler is 85778. This coupler has a brake lockout.
Mike dibecelle
Looking for Attwood master cylinder 85376
Todd Barshinger
I would like to order shoulder bolt kit # 85842.
Rick Manzanares
How much for the Atwood Replacement 85837 kit?